# 旋轉圖形 vs Math Surface

The clearest difference is ads: 旋轉圖形 at none against Math Surface's shown. 旋轉圖形 also leads on iOS requirement (6.0 vs 26.2). Math Surface's advantage is update cadence (weekly vs every 36 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

旋轉圖形 ships an update every 36 months, Math Surface weekly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 旋轉圖形 | Math Surface |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 36 months | **Weekly** |
| Size | 22 MB | 10 MB |
| Requires iOS | **6.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### 旋轉圖形

[App page](https://appshunter.io/ios/app/id950974839)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Surface

[App page](https://appshunter.io/ios/app/math-surface/id6774883910)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 旋轉圖形 free?

旋轉圖形 is free to download, with no in-app purchases.

### Is Math Surface free?

Math Surface is free to download, with no in-app purchases.

### Do 旋轉圖形 or Math Surface have ads?

Math Surface shows ads; 旋轉圖形 does not.

### Which is updated more often, 旋轉圖形 or Math Surface?

旋轉圖形 ships an update every 36 months, and Math Surface weekly. Most recently, 旋轉圖形 was updated on October 14, 2026 and Math Surface on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*